/*
 *
 * This file is part of QMapControl,
 * an open-source cross-platform map widget
 *
 * Copyright (C) 2007 - 2008 Kai Winter
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with QMapControl. If not, see <http://www.gnu.org/licenses/>.
 *
 * Contact e-mail: kaiwinter@gmx.de
 * Program URL   : http://qmapcontrol.sourceforge.net/
 *
 */

#ifndef CURVE_H
#define CURVE_H

#include "qmapcontrol_global.h"
#include "geometry.h"
#include "point.h"

namespace qmapcontrol
{
//! A Curve Geometry, implemented to fullfil OGC Spec
/*!
 * The Curve class is used by LineString as parent class.
 * This class could not be used directly.
 *
 * From the OGC Candidate Implementation Specification:
 * "A Curve is a 1-dimensional geometric object usually stored as a sequence of Points,
 *with the subtype of Curve specifying the form of the interpolation between Points. This
 *specification defines only one subclass of Curve, LineString, which uses a linear
 *interpolation between Points."
 *	@author Kai Winter <kaiwinter@gmx.de>
 */
class QMAPCONTROL_EXPORT Curve : public Geometry
{
    Q_OBJECT
public:
    virtual ~Curve();

    double Length;

    //  virtual Geometry Clone();
    //  virtual QRectF GetBoundingBox();

    //  virtual Point EndPoint() = 0;
    //  virtual Point StartPoint() = 0;
    //  virtual Point Value() = 0;

protected:
    Curve(QString name = QString());
    virtual void draw(QPainter *painter, const MapAdapter *mapadapter,
                      const QRect &screensize, const QPoint offset)
        = 0;
};
}
#endif
